Azure Storage - List queues |
Declaration
<AMAZURESTORAGE ACTIVITY="list_queue" RESULTDATASET="text" PREFIX="text" LISTING="text (options)" PROTOCOL="text (options)" ACCOUNTNAME="text" ACCESSKEY="text (encrypted)" BLOBENDPOINT="text" QUEUEENDPOINT="text" TABLEENDPOINT="text" TIMEOUT="number" /> |
Description
Lists all of the queues in a given storage account or a collection of queues with names that begin with the specified prefix and populates a dataset with results.
Practical Usage
Used to retrieve information regarding a collection of queues. Other Azure Storage activities can be performed on the queues upon retrieval (i.e. Delete queue, Set queue metadata, Clear queue, etc.).
Parameters
Connection
Property |
Type |
Required |
Default |
Markup |
Description |
Connection |
Indicates where user credentials and preferences should originate from. This is a design mode parameter used only during task construction and configuration, thus, comprises no markup. The available options are:
|
||||
Session |
Text |
Yes if connection is session-based |
AzureStorageSession1 |
SESSION="MyAzureSession" |
The name of an existing session to associate this activity with. This parameter is active only if the Connection parameter is set to Session. The default session name is 'AzureStorageSession1'. |
Account name |
Text |
Yes if connection is host-based |
(Empty) |
ACCOUNTNAME="myaccount" |
The globally unique name of the Windows Azure storage account. This parameter is active only if the Connection parameter is set to Host. |
Access key |
Text |
Yes if connection is host-based |
(Empty) |
ACCESSKEY="[AccessKey]" |
The primary or secondary access key (each composed of 88 ASCII characters) used to authorize access to Azure Storage. This parameter is active only if the Connection parameter is set to Host. |
Protocol |
Text (options) |
No |
HTTPS |
|
The type of protocol used to access Azure Storage. The available options are:
|
Timeout (seconds) |
Number |
No |
90 |
TIMEOUT="180" |
The timeout interval (in seconds) for requests made to the storage service. If the timeout elapses before a server response is returned, the operation times out and the service returns an error. The default timeout value is 90 seconds. |
Blob endpoint URI |
Text |
No |
(Empty) |
BLOBENDPOINT="http://
|
|
Queue endpoint URI |
Text |
No |
(Empty) |
QUEUEENDPOINT="http://
|
The
endpoint for the Queue service, as configured for the Azure storage
account. The default Queue service endpoint is |
Table endpoint URI |
Text |
No |
(Empty) |
TABLEENDPOINT="http://
|
|
Proxy type |
Text (options) |
No |
System default |
|
The type of proxy server to connect through (if required). The available options are:
|
Proxy server |
Text |
No |
(Empty) |
|
The host name (server.domain.com) or IP address (xxx.xxx.xxx.xxx) of the proxy server. This parameter is active only if the Proxy type parameter is set to HTTP. |
Proxy port |
Number |
No |
808 |
PROXYPORT="8080" |
The port that is used by the proxy server for client connections. The default value is 808. This parameter is active only if the Proxy type parameter is set to HTTP. |
Use authentication |
If enabled, specifies that the proxy requires authentication before granting access to resources. If disabled (default), no authentication is required. This parameter is active only if the Proxy type parameter is set to HTTP. This is a visual mode parameter only used during design time, therefore, contains no markup. |
||||
Proxy username |
Text |
No |
(Empty) |
PROXYUSERNAME="theUsername" |
The username to authenticate with the proxy server. This parameter is active only if Use authentication parameter is enabled. |
Proxy password |
Text |
No |
(Empty) |
PROXYPASSWORD="[encrypted]" |
The password to authenticate with the proxy server. This parameter is active only if Use authentication parameter is enabled. |
Queue
Property |
Type |
Required |
Default |
Markup |
Description |
Prefix (optional) |
Text |
No |
(Empty) |
PREFIX="myqueue" |
Filters the results to return only queues whose name begins with the specified prefix. If this parameter is empty, all queues will be listed. |
Listing details |
Text (options) |
Yes |
None |
|
Denotes which queue details to include in the response (if any). The available options are:
|
Create and populate dataset with queue information |
Text |
Yes |
(Empty) |
SOURCE="C:\PDFFileName.pdf" |
The name of the dataset to create and populate with queue information. For details regarding the dataset names/return values this activity creates, see Datasets below. |
Additional Notes
Datasets
A dataset is a multi-column, multi-row object that contains a collection of information gathered during execution of an activity and stored in memory. This activity creates and populates a dataset with the following fields (rows):
Name |
Type |
Return Value |
theDataset.EncodeMessage |
Text |
The encode message of the queue. |
theDataset.Metadata |
Text |
The queue's metadata. |
theDataset.Name |
Text |
The unique name of the queue. |
theDataset.TotalMessages |
Number |
The total number of messages contained in the queue. |
theDataset.Uri |
Text |
The URI of the queue (i.e. http://netauto.queue.core.windows.net/myqueue). |
Example
- The sample AML code below can be copied and pasted directly into the Steps Panel of the Task Builder.
- Parameters containing user credentials, files, file paths, and/or other information specific to the task must be customized before the sample code can run successfully.
Description
A sample task that populates a dataset with queue information. A Loop Dataset activity is then used to loop through the list of queues. During each iteration, a message box is displays information about the current queue.
<!-- Create session -->
<AMAZURESTORAGE ACTIVITY="create_session" ACCOUNTNAME="netauto" ACCESSKEY="AM3kbFvH+pgzDo=aME" SESSION="myQueueSession" />
<!-- List queues -->
<AMAZURESTORAGE ACTIVITY="list_queue" SESSION="myQueueSession" RESULTDATASET="queueInfo" LISTING="None" />
<!-- Loop dataset -->
<AMLOOP ACTIVITY="dataset" DATASET="queueInfo"><!-- Display message box with information on current queue --><AMSHOWDIALOG WINDOWTITLE="Queue information">Queue name: %queueInfo.Name%Queue address: %queueInfo.URI%Total messages: %queueInfo.TotalMessages%</AMSHOWDIALOG><!-- End loop --></AMLOOP>
<!-- Display message box with information on current queue -->
<AMSHOWDIALOG WINDOWTITLE="Queue information">Queue name: %queueInfo.Name%Queue address: %queueInfo.URI%Total messages: %queueInfo.TotalMessages%</AMSHOWDIALOG>
<!-- End loop -->
<AMLOOP ACTIVITY="end" />
<!-- End session -->
<AMAZURESTORAGE ACTIVITY="end_session" SESSION="myQueueSession" />